When the same error repeatedly occurs although the power is turned OFF and then ON for several times, execute the following remedies.
(1) Check the connection between the Main Controller PCB and the CIS Unit. (J2)
(2) Replace CIS Unit.
(3) Check the connection between the Main Controller PCB and the Reader Motor (M3). (J11)
(4) Replace the Reader Motor (M3).
(5) Replace the Main Controller PCB.